I slammed the door shut behind me and saw my sister Lisa bent over the kitchen table in nothing but a tiny tank top and thong. Her ass cheeks were spread wide from how she was reaching for something on the counter, and her pussy lips were already glistening.
"Fuck, sis," I growled, dropping my bag. "You knew I'd be home early."
She straightened up slow, turning with a smirk. "Took you long enough, big brother. I've been wet all morning thinking about that thick cock of yours." She hooked her thumbs in the thong and shoved it down, stepping out of it. Her shaved cunt was puffy and ready, clit poking out. I crossed the room in two strides, grabbed her by the hips, and spun her back around.
I yanked my pants down and my cock sprang out, hard and veiny, the head already leaking. No teasing this time. I lined up and slammed into her pussy in one thrust. Lisa moaned loud, pushing back against me. "Yeah, fuck me like you own it. Pound your sister's cunt." Her walls gripped me tight, hot and slick, as I started hammering. The table creaked under us with every slap of my balls against her ass.
I reached around and rubbed her clit hard with two fingers, feeling it swell. Lisa's tits bounced in the tank top until I ripped it up and pinched her nipples. "Deeper, you bastard," she hissed. I pulled almost all the way out then drove back in balls-deep, grinding against her cervix. Her juices ran down my shaft and dripped on the floor. We didn't talk much after that, just grunts and the wet sound of my cock stretching her open.
I flipped her onto the table on her back, hooked her legs over my shoulders, and kept fucking. Her pussy made filthy squelching noises every time I bottomed out. Lisa clawed at my arms. "Cum in me, brother. Fill your sister's hole." I slammed faster, sweat dripping off me, until my balls tightened and I unloaded rope after rope of thick cum straight into her. She came with me, pussy pulsing and milking every drop.
We didn't stop there. After a minute to catch our breath, she slid off the table, dropped to her knees, and sucked my cock clean, tongue swirling around the head while my cum and her juices mixed in her mouth. "Tastes like family," she said with a dirty grin before deep-throating me again until I was rock hard.
I bent her over the couch next, spread her ass, and worked a finger into her tight hole while I fucked her pussy from behind. She pushed back, begging for more. "Shove it in my ass too. I want both." I pulled out, spat on her asshole, and pressed my cockhead against it. It took a few pushes but I sank into her ass, slow at first then faster as she relaxed. Her pussy was empty but dripping, so she fingered herself while I reamed her ass.
We switched positions all afternoon. Doggy on the floor, her riding me on the chair with her tits in my face, me holding her up against the wall while she wrapped her legs around me. Every time I came she demanded it inside, and every time she came she screamed my name. By the time we collapsed on the couch, her holes were leaking cum down her thighs and my cock was sore but still twitching.
Lisa turned her head and kissed me rough. "Same time tomorrow, or you gonna chicken out like last week?" I slapped her ass and pulled her closer. "Count on it, sis. This is just the start."
